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Spellzone list 
Key words for GCSE Maths
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congruent |
Congruent shapes are identical.
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cross-section |
A cross-section is found by slicing a 3D shape.
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decagon |
A decagon is a shape with ten sides.
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diameter |
The distance through the centre from one side of a circle to the other is called the diameter.
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hypotenuse |
The hypotenuse is the longest side of a triangle.
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vector |
A vector has both size and direction and describes the movement of an object.
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locus |
A locus is a pattern formed by a point that moves according to a rule.
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loci |
Loci is the plural of locus.
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perimeter |
The perimeter is the distance around the shape.
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perpendicular |
Perpendicular lines are at right angles to each other.
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Pi |
The ratio of the circumference to the diameter of a circle is called Pi.
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polygon |
A shape with more than three sides is a polygon.
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prism |
A 3D shape with a constant cross-section is called a prism.
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tangent |
A tangent is a straight line that touches a circle only once.
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sine |
Sine is the ratio of the hypotenuse and opposite in a triangle.
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This word list was created by Spellzone. View more Spellzone course lists or curriculum word lists.
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